5 May
2012
5 May
'12
1:21 p.m.
On 04/05/12 3:28 PM, Tony Duell wrote:
I haev to agree with you. Somebody who can't plug the cable from a thing
with keys on it into a socket marked 'keyboard' (or with a little picture
of a keyboard nest to it) probably shouldn't own a computer :-)
They have the SAME connector, so from a usability pov it invites
mistakes. Sometimes, even non-technical people use computers. I've
noticed that they often don't identify sockets before attempting plugs.
On an LCD TV we bought a few yewars ago there are 8 RCA phono sockets
(along with lots of otehr conencotrs). These RCA phono sockets are :
3 for 'component video' -- luminance nad 2 chromanance signals. Coloured
red, gereen amd blue
3 for an AV inoutm, Composite video (yellow) left (white) and red (right)
audio
2 for audio output to an external amplifier (if to so wish), white and
red again.
So there are 3 red-coloured phono sockets with differnet functions. It
makes having to plug colour-coded moni-DINs into keyboard and mouse
conencotrs very simple.
specialised connectors. Which PCs eventually did (long
after Apple did).
Knowing the difference between a keyboard and a mouse was stretching the
limits?
And proliferating physically incompatible connectors seems to make less
sense than simply standardising a simple interface.
USB ius anything but simple. Have you read the standard?
Anyway, next you'll be claiming that the 3 sockets on the wall here -- a
230V 13A mains socket, a coaxial TV aerial socket and a UK telephone
sockey should all teally br the same type of conenctor and interchangeable.
-tony